On Mon, May 2, 2011 at 7:43 PM, Craig Ringer <craig@xxxxxxxxxxxxxxxxxxxxx> wrote: > I'm now strongly in favour of keeping an internal key that users never > see, and having separate user-visible identifiers. The users can demand > that those identifiers change format or generation method and it's an It's far easier to change a unique constraint on the fly than a PK in a busy production database. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
